Use the KTX-100EQ sound tuning kit to tailor the audio settings in your Alpine CDA-9887 CD receiver to best match your vehicle's interior. Connect the included microphone and place it in your preferred listening position in the vehicle — the KTX-100EQ uses impressive automatic sound tuning to take the guesswork out of setting up your system.

IMPRINT sound tuning technology
Load the supplied software onto your laptop PC, connect it to the KTX-100EQ via the included USB cable, and you're ready to adjust your system. Let the computer set the adjustments, or use the software to do it manually. You'll find a built-in 3-band parametric equalizer, manual crossover controls, and manual time-correction controls as well.

Once you have the sound tweaked to your liking, your Alpine stereo stores the settings in its flash memory. Even if you disconnect the car battery, the sound settings are preserved until you use the IMPRINT kit to change them.

Use it once and send it back
Making sound adjustments with the IMPRINT is a one-time process, so there's no need for you to keep the KTX-100EQ kit after you've used it. Normally, this kit is sold only to dealers, but Crutchfield wants to make this special offer to all you car audio "do-it-yourselfers" out there:

Use the sound tuning kit and then return in to us within 30 days. We'll refund the purchase price, minus a $50 re-stocking fee — that's less than you'd pay a dealer to adjust the sound for you. On the other hand, if you decide not to use the kit, return it to us with the software unopened and we'll refund the full purchase price.

What if you get a new car?
Just give us a call if you move your Alpine stereo to a new car. You've already paid to use the KTX-100EQ kit once, so we'll send it to you again free of charge so you can make adjustments for your new vehicle. As before, just return it within 30 days.